CVE-2026-116368: DeepSeek Harness Browser Auth browser-auth.ts improper authorization

Severity: high (CVSS 7.3 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.6% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-10-26 · updated 2026-10-26
Weakness: CWE-266

Description

A vulnerability was determined in DeepSeek Harness up to 0.2.0-rc.2. This issue affects some unknown processing of the file packages/client/connection/src/browser-auth.ts of the component Browser Auth. This manipulation causes improper authorization. The attack can be initiated remotely. The vendor was contacted early about this disclosure but did not respond in any way.

Affected products

DeepSeek Harness: 0.2.0-rc.0, 0.2.0-rc.1, 0.2.0-rc.2

References

https://vuldb.com/cve/CVE-2026-116368
https://vuldb.com/submit/1012891
https://vuldb.com/vuln/426332
https://vuldb.com/vuln/426332/cti

Get alerted when CVE-2026-116368 or the next vulnerability affects your stack